DS726PP2
11
CS4525
LVD
9
VD Voltage Level Indicator
(
Input
) - Identifies the voltage level attached to VD. When applying
5.0 V to VD, LVD must be connected to VD. When applying 2.5 V or 3.3 V to VD, LVD must be con-
nected to DGND.
DGND
10
Digital Ground
(
Input
) - Ground for the internal logic and I/O.
VD_REG
11
Core Logic Power
(
Output
) - Internally generated low voltage power supply for digital logic.
VD
12
Digital Power
(
Input
) - Positive power supply for the internal regulators and digital I/O.
VA_REG
13
Analog Power
(Output)
- Internally generated positive power for the analog section and I/O.
AGND
14
Analog Ground
(
Input
) - Ground reference for the internal analog section and I/O.
FILT+
15
Positive Voltage Reference
(
Output
) - Positive reference voltage for the internal ADC sampling
circuits.
VQ
16
Common Mode Voltage
(
Output
)
-
Filter connection for internal common mode voltage.
AFILTL
AFILTR
17
18
Antialias Filter Connection
(
Output
) - Antialias filter connection for ADC inputs.
AINL
AINR
19
20
Analog Input
(
Input
)
-
The full-scale input level is specified in the ADC Analog Characteristics
specification table.
OCREF
21
Over Current Reference Setting
(
Input
) - Sets the reference for over current detection.
PGND
22,23
27,28
33,34
37,38
Power Ground
(
Input
) - Ground for the individual output power half-bridge devices.
RAMP_CAP
24
Output Ramp Capacitor
(
Input
) - This pin should be connected directly to VP in hardware mode.
VP
25,30,
31,36
High Voltage Power
(
Input
) - High voltage power supply for the individual half-bridge devices.
OUT4
OUT3
OUT2
OUT1
26
29
32
35
PWM Output
(
Output
) - Amplified PWM power outputs.
TSTO
39
40
Test Output
(Output)
- These pins are outputs used for the Logic Level PWM switching signals
available only in software mode. They must be left unconnected for hardware mode operation.
TWR 41
Thermal Warning Output
(
Output
) - Thermal warning output.
ERRUVTE 42
Thermal and Undervoltage Error Output
(
Output
) - Error flag for thermal shutdown and under-
voltage.
ERROC 43
Overcurrent Error Output
(Output)
- Overcurrent error flag.
EN_TFB
44
Enable Thermal Feedback
(Input) -
Enables the thermal foldback feature when high.
I2S/LJ
45
I²S/Left Justified
(Input)
- Selects between I²S and Left-Justified data format for the serial input
port. Selects I²S when high and LJ when low.
SYS_CLK
46
System Clock
(
Input/Output
) -Clock source for the delta-sigma modulators.
TSTO
47
Test Output
(Output)
- This pin is an output used for the crystal oscillator driver available only in
software mode. It must be left unconnected for normal hardware mode operation.
TSTI
48
Test Input
(
Input
) - This pin is an input used for the crystal oscillator driver available only in soft-
ware mode. It must be tied to digital ground for normal hardware mode operation.
Thermal Pad
-
Thermal Pad
- Thermal relief pad for optimized heat dissipation. See
for more information.
